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Finding the Third Proportional to 12,391,872 and 26,988,432

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Solution

The third proportional to 12,391,872 and 26,988,432 is: 58,778,484.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391,872 : 26,988,432 = 26,988,432 : x
  2. Step 2: Convert to fraction form
    12,391,872/26,988,432 = 26,988,432/x
  3. Step 3: Cross multiply
    12,391,872x = 26,988,432 × 26,988,432
  4. Step 4: Simplify right side
    12,391,872x = 728,375,461,818,624
  5. Step 5: Solve for x
    x = 728,375,461,818,624/12,391,872
  6. Step 6: Final answer
    x = 58,778,484.95

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.